Articles containing silicone compositions and methods of making such articles

Abstract

The disclosure is directed to an article includes a first layer and a second layer. The first layer includes a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.1% by weight to about 5.0% by weight of the silicone base polymer and the second layer includes a fluoropolymer.

1 . An article comprising:
 a first layer comprising a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.1% by weight to about 5.0% by weight of the silicone base polymer; and   a second layer comprising a fluoropolymer,   wherein the first layer has a peel strength of at least about 10.0 ppi to the second layer and a peel strength of not greater than about 7.0 ppi to a metal.   
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . The article of  claim 1 , wherein the metal is stainless steel, steel, aluminum, titanium, or combination thereof. 
     
     
         5 . The article of  claim 1 , wherein the silicone base polymer is a polyalkylsiloxane. 
     
     
         6 . The article of  claim 5 , wherein the polyalkylsiloxane is platinum-catalyzed. 
     
     
         7 . The article of  claim 5 , wherein the polyalkylsiloxane is a high consistency gum rubber (HCR) or liquid silicone rubber (LSR). 
     
     
         8 . The article of  claim 1 , wherein the hydride-containing siloxane is hydride-containing polydialkylsiloxane. 
     
     
         9 . The article of  claim 1 , wherein the hydride-containing siloxane is present at about 0.4% to about 2.0% by weight of the silicone base polymer. 
     
     
         10 . The article of  claim 1 , wherein the fluoropolymer is polytetrafluoroethylene, fluorinated ethylene propylene copolymer, or a copolymer of tetrafluoroethylene and perfluoropropyl vinyl ether (PFA). 
     
     
         11 . (canceled) 
     
     
         12 . The article of  claim 1 , having a volatile organic contaminant (VOC) level that is substantially undetectable for 4-methyl-2-pentanone as measured by gas chromatography-mass spectrometry (GC MS). 
     
     
         13 . The article of  claim 1 , wherein the first layer is disposed directly on the second layer. 
     
     
         14 . The article of  claim 1 , wherein the first layer is substantially free of primer. 
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . (canceled) 
     
     
         18 . (canceled) 
     
     
         19 . (canceled) 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . (canceled) 
     
     
         24 . (canceled) 
     
     
         25 . A tube comprising:
 a liner comprising a fluoropolymer;   a tie layer overlying the liner, the tie layer comprising a silicone material including a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.1% by weight to about 5.0% by weight of the silicone base polymer;   a reinforced layer overlying the tie layer, the reinforced layer comprising a silicone material including a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.1% by weight to about 5.0% by weight of the silicone base polymer and at least one polyester reinforcement member substantially embedded within the silicone material; and   a cover layer overlying the reinforced layer, the cover layer comprising a silicone material including a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.1% by weight to about 5.0% by weight of the silicone base polymer.   
     
     
         26 . The tube of  claim 25 , wherein the silicone base polymer is a polyalkylsiloxane. 
     
     
         27 . (canceled) 
     
     
         28 . (canceled) 
     
     
         29 . The tube of  claim 25 , wherein the hydride-containing siloxane is hydride-containing polydialkylsiloxane. 
     
     
         30 . The tube of  claim 25 , wherein the hydride-containing siloxane is present at about 0.4% by weight to about 2.0% by weight of the silicone base polymer. 
     
     
         31 . The tube of  claim 25 , wherein the fluoropolymer is polytetrafluoroethylene, fluorinated ethylene propylene copolymer, or a copolymer of tetrafluoroethylene and perfluoropropyl vinyl ether (PFA). 
     
     
         32 . (canceled) 
     
     
         33 . The tube of  claim 25 , wherein the cover is disposed directly on the liner. 
     
     
         34 . The tube of  claim 25 , wherein the cover is substantially free of primer. 
     
     
         35 . A method of making an article comprising:
 providing a first layer, wherein the first layer comprises a silicone base polymer and a hydride-containing siloxane, wherein the hydride-containing siloxane is present at about 0.4% by weight to about 2.0% by weight of the silicone base polymer;   providing a second layer disposed directly on the first layer to form an article, wherein the second layer comprises a fluoropolymer; and   heating the article.   
     
     
         36 . The method of  claim 35 , wherein the step of heating the article is at a temperature of about 125° C. to about 200° C. for a time of about 1 minute to about 60 minutes. 
     
     
         37 . (canceled) 
     
     
         38 . The method of  claim 35 , further comprising the step of surface treating the second layer prior to providing the second layer. 
     
     
         39 . (canceled) 
     
     
         40 . (canceled) 
     
     
         41 . (canceled) 
     
     
         42 . (canceled) 
     
     
         43 . (canceled) 
     
     
         44 . (canceled) 
     
     
         45 . The method of  claim 35 , having a volatile organic contaminant (VOC) level that is substantially undetectable for 4-methyl-2-pentanone by gas chromatography-mass spectrometry (GC MS). 
     
     
         46 . The method of  claim 35 , wherein the silicone base polymer is a polyalkylsiloxane. 
     
     
         47 . (canceled) 
     
     
         48 . (canceled) 
     
     
         49 . The method of  claim 35 , wherein the hydride-containing siloxane is hydride-containing polydialkylsiloxane. 
     
     
         50 . The method of  claim 35 , wherein the fluoropolymer is polytetrafluoroethylene, fluorinated ethylene propylene copolymer, or a copolymer of tetrafluoroethylene and perfluoropropyl vinyl ether (PFA).